Finding the Third Proportional to 380,980.50 and 814,446

Step by Step Solution

1. Step 1: Write the proportion equation
   380,980.50 : 814,446 = 814,446 : x
2. Step 2: Convert to fraction form
   380,980.50/814,446 = 814,446/x
3. Step 3: Cross multiply
   380,980.50x = 814,446 × 814,446
4. Step 4: Simplify right side
   380,980.50x = 663,322,286,916
5. Step 5: Solve for x
   x = 663,322,286,916/380,980.50
6. Step 6: Final answer
   x = 1,741,092.49